Fundamentally, it needs to start in schools, but you're right: it is a big problem. That's part of the reason studies have shown that one-off interventions don't work. When you watch a short video, you're still bombarded with these messages all the time on billboards, on TV. You have the The Biggest Loser on reality TV, and things like that. You need to build up the skills starting at a younger age, of course, being age appropriate, and reinforce them over time. It's not just saying that this is bad, but it's helping kids develop the skills that help them understand advertising tactics. The way things have changed over time, like Ms. Ashton mentioned, in terms of what the beauty ideal was, say, six years ago to today shows that these ideas aren't fixed.
The other big problem with the media image is the fact that it creates even more barriers for people who aren't white. Some of the early evidence we've seen in studies that have been done on women of colour with eating disorders is that because the image of the ideal beautiful woman is presented as a white woman, it can create additional complications. There still may be susceptibility to this same issue, so we need to explore race in there as well.